Nothing appears in MIDI/Instrument track

When I record. I just registered Cubase Artist 6 and followed the directions to set up audio and Instrument recording. No problem with the audio. The incoming signal is recorded and it appears in the track. When I record a virtual instrument in Instrument track, nothing/no information appears. I hear the incoming sound (of the instrument selected, such as strings from Halion) as I play it on my MIDI keyboard and the signal is recognized in the track level meters. I hit record and play, but nothing appears in the track, and, of course, no sound, even with monitor and record button disingaged. What am I doing incorrectly here? Have I not set up something properly?

I have a couple of other DAW programs, like Sonar and Pro Tools and have no trouble recording virtual instruments.